1 files changed, 67 insertions, 0 deletions
diff --git a/core/tests/coretests/src/com/android/internal/os/DebugTest.java b/core/tests/coretests/src/com/android/internal/os/DebugTest.java
new file mode 100644
index 0000000..88c7d1b
--- /dev/null
+++ b/core/tests/coretests/src/com/android/internal/os/DebugTest.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.internal.os;
+
+import android.os.Debug;
+
+import android.test.suitebuilder.annotation.SmallTest;
+import junit.framework.TestCase;
+
+@SmallTest
+public class DebugTest extends TestCase {
+
+    private final static String EXPECTED_GET_CALLER =
+            "com\\.android\\.internal\\.os\\.DebugTest\\.testGetCaller:\\d\\d";
+    private final static String EXPECTED_GET_CALLERS =
+            "com\\.android\\.internal\\.os\\.DebugTest.callDepth3:\\d\\d " +
+            "com\\.android\\.internal\\.os\\.DebugTest.callDepth2:\\d\\d " +
+            "com\\.android\\.internal\\.os\\.DebugTest.callDepth1:\\d\\d ";
+
+    /**
+     * @return String consisting of the caller to this method.
+     */
+    private String callDepth0() {
+        return Debug.getCaller();
+    }
+
+    public void testGetCaller() {
+        assertTrue(callDepth0().matches(EXPECTED_GET_CALLER));
+    }
+
+    /**
+     * @return String consisting of the callers to this method.
+     */
+    private String callDepth4() {
+        return Debug.getCallers(3);
+    }
+
+    private String callDepth3() {
+        return callDepth4();
+    }
+
+    private String callDepth2() {
+        return callDepth3();
+    }
+
+    private String callDepth1() {
+        return callDepth2();
+    }
+
+    public void testGetCallers() {
+        assertTrue(callDepth1().matches(EXPECTED_GET_CALLERS));
+    }
+}